"The barons of the media, with their red-topped assassins, are the biggest beasts in the modern jungle. They have no predators. They are untouchable. They laugh at the law; they sneer at Parliament. They have the power to hurt us, and they do, with gusto and precision, with joy and criminality. Prime ministers quail before them, and that is how they like it."

The casting of John Redmond in the role of scapegoat was not without functional advantage in Irish politics. That partition could in some degree be treated as a fait accompli for which responsibility rested with the Irish party in a limited but crucial degree defused the issue in domestic Irish politics. It must be considered to have assisted pro-Treaty Sinn Féin to persuade a majority of the Irish people to accept the Treaty in 1922. The price was a strain of evasion and disingenuousness in the politics of the independent Irish state in relation to the basis for partition and in attitudes towards the Northern Ireland state.

In the early 1960s Charlotte zealously embraces her role as literary reviewer, criticising what she terms “negative” and “defeatist” books. One particular text is rejected because it does not help to “promote belief in the progress of humanity and the triumph of socialism; it does not, therefore, belong on the shelves of the bookshops of our Republic”.

Yet differences also stand out. In Northern Ireland Catholic political disaffection was reinforced by material inequality. Protestant alienation from the southern state’s Catholic ethos was mitigated by a relatively strong position in commercial and professional life.

Citing mostly late nineteenth century and early/mid-twentieth century clinicians, he argues that there are only three mutually exclusive pathological mental structures: neurosis, psychosis and perversion. The difference between neurosis and psychosis lies in the degree of certainty with which beliefs are held by the patient. Neurotics tend to doubt, psychotics are more certain.

He was able to make the 1860 Adulteration of Food Act work to stem the addition of red lead, strychnine, sand, plaster of Paris and mercury to basic diets, to prevent narcotics and hallucinogenics being added to popular drinks, and polluted water and salt being added to milk. According to his own reckoning, no less than eight million pounds of contaminated food was detected, analysed and condemned during his time as public analyst.

Like Evelyn Waugh, Amis knows how to sharpen his comedy by a deadpan delivery. Like Waugh too, he is adept at pressing the narrative towards the monstrous, surreal and grotesque while remaining just on this side of the border between realism and fantasy. It is a vein of satire to which the faintest whiff of genuine human sentiment or moral attitudinising is fatal.

Most Tans were young, unemployed, former enlisted men in the wartime military, and products of England’s urban working class. Victims of a spiralling unemployment crisis, they were attracted to Ireland by promises of upward mobility, steady work, good pay, and a comfortable pension. Since little can be determined about the nature of the constables’ prior war service, Leeson sanely suggests historians stop presuming they suffered from post-traumatic stress disorder.

In 1920, as again in 1970, the British constitution shattered in Ireland, where servants of the Crown resorted to extra-legal means –torture, reprisal, murder to restore order. It is only by understanding those contexts that we begin to make sense of, as opposed to describing, the terrors accompanying collapses. The victims’ stories are always heartrending and should be explored. But devoid of context, biographies say little that is historical, as opposed to newsworthy.

This equation of the county with mindless violence and chaos has long since been forgotten, and Tipperary has become one of the most respectable of Irish counties, because qualities which Victorian commentators asserted were intrinsic to the Irish character were not but had their origin in the landlord-tenant relationship and faded with the waning of landlord power.